set up ctrl thread log scopes; ditch ctrl -> user log stuff, just make each log site in control of exporting to a separate file

src/os/core/os_core.c

@@ -113,6 +113,21 @@ os_write_data_list_to_file_path(String8 path, String8List list)
   return good;
 }
 
+internal B32
+os_append_data_to_file_path(String8 path, String8 data)
+{
+  B32 good = 0;
+  OS_Handle file = os_file_open(OS_AccessFlag_Write, path);
+  if(!os_handle_match(file, os_handle_zero()))
+  {
+    good = 1;
+    U64 pos = os_properties_from_file(file).size;
+    os_file_write(file, r1u64(pos, pos+data.size), data.str);
+    os_file_close(file);
+  }
+  return good;
+}
+
 internal OS_FileID
 os_id_from_file_path(String8 path)
 {

src/os/core/os_core.h

@@ -171,6 +171,7 @@ internal String8List os_string_list_from_argcv(Arena *arena, int argc, char **ar
 internal String8        os_data_from_file_path(Arena *arena, String8 path);
 internal B32            os_write_data_to_file_path(String8 path, String8 data);
 internal B32            os_write_data_list_to_file_path(String8 path, String8List list);
+internal B32            os_append_data_to_file_path(String8 path, String8 data);
 internal OS_FileID      os_id_from_file_path(String8 path);
 internal S64            os_file_id_compare(OS_FileID a, OS_FileID b);
 internal String8        os_string_from_file_range(Arena *arena, OS_Handle file, Rng1U64 range);